On the distribution of the estimated process yield index Spk

James W. Wisnowski; James R. Simpson; Douglas C. Montgomery

doi:10.1002/qre.450

On the distribution of the estimated process yield index S_pk

James W. Wisnowski, James R. Simpson, Douglas C. Montgomery

Research output: Contribution to journal › Article › peer-review

87 Scopus citations

Abstract

An asymptotic distribution for an estimate of the process yield index was considered. The asymptotic distribution of estimate was useful in statistical inferences for process yield index. Hypothesis testing and interval estimation on yield index were studied with the help of an example. The process satisfied the capability requirement yield index for its value greater than one. An approximate 95% confidence interval for yield index was found to be consistent with the hypothesis testing results.

Original language	English (US)
Pages (from-to)	111-116
Number of pages	6
Journal	Quality and Reliability Engineering International
Volume	18
Issue number	2
DOIs	https://doi.org/10.1002/qre.450
State	Published - Mar 1 2002
Externally published	Yes

Keywords

Central limit theorem
Illustrative example
Normal distribution

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality
Management Science and Operations Research

Access to Document

10.1002/qre.450

Cite this

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